Car-roof.



R. G. DUDLEY.

GAR ROOF.

APPLICATION FILED SEPT.13, 1909.

Patented Mar. 30

3 SHEETS-SHEET 1.

I MIX 1.11 772%)? m z mum/s PETERS 4:11., wnamurna. WASHING mu. u. v.

R. G. DUDLEY.

OAR ROOF.

APPLICATION FILED SEPTQ13, 1909.

I. 30, 1915. a snnmswnsm 2.

a M d ERS ca. pncmumm. WASNINUWN, n c.

R. C. DUDLEY.

GAB ROOF.

APPLICATION FILED SEPT. 13, 1909.

8 SHEETS-SHEET 3.

Eqywrwi 61D Patented Mar. 30, 1915.

'wardly bent and outwardly spreading flanges 32 that freely straddle theflanged upper ends'of the opposed sheets on opposite sides of the ridge,the outwardly turned lower verse caps are all. providedwith the en-'larged bolt holes 36, to freely accommodate the through-bolt 37 thatsecures to the ridge the saddle 38 that surmounts each cap intersectionand rests upon the tops of each pair of opposed transverse caps 22.

These'enlarged bolt-holes 36, in the tongues of the caps under thesaddles, permit the caps 22 and 31 some play as the roof-frameworkweaves. Running boards39 are spiked upon and supported by'the saddles38, and hold the said saddles mutually parallel while permitting themsome slight swinging 'play on the bolts 37 that secure the saddles tothe The central running board coversridge. and protects the line ofridge-caps 31.

-It is obvious that this outside metal roof' .members; and that whenappliedit .Will be entirely flexible and yielding to the distor tionthat the roof-framework.. necessarily suffers as the car weaves, and yetwill come back to normal when the roof-framework is relieved of anydistorting strain; and will he at all times a thoroughly efficient andwater-proof protection to the wooden roof. The rigid securing of thelower edges of the sheets at fixed positions on the eaves of thecar,--while the other three edges of each sheet are free save for theirloose engagement with the caps and have free space all around thempermits the sheet to shift'laterally in response to distortion of theroof-framework and yetinsuresthe return of the sheet to normal positionwhen the distorting strain is removed; and yet the waterproof and otherprotective features of the metallic roofing are preserved. T-he movementthat occurs, and; gives flexibility to the relation between the woodroof and the overlying sheets, may be regarded as a distortion of thewood roof under and free of the body and the upper and lateral edges ofeach sheet, while the sheet itself, rigidly secured at the eaves, keepsany part of said line to the weather; while at the same time the severalsheets on either side of the roof may shift in respect to each other ifany strain flexes the full eaves line. "Vhile the caps hold the body ofthe sheet down in place and at all times cover its free edges, they donot preventit from shifting over the roof. Y

My invention is hereinabov'e set forth as embodied in one particularform of construction, but such construction may be modified in so far asthe subject matter of the claim hereinafter made may be distinguishedfrom prior devices for like purpose.

I claim In a car roof. in combination: wooden top sheathing, metallicroof sheets formed with upstanding side and ridge flanges, held on thesaid sheathing and shiftable longitudinally of the car thereon, andspaced apart from each other at their sides and at the ridge;super-carlines arranged between the flanges of the roof sheets andspaced therefrom: transverse seam caps resting at their middle portionson the said super-carlines, and having horizontal extensions beyond thesuper-carlines and over the flange of the roof sheets and havingdepending flanges inclosingand interlocking with the side flanges of twosheets, and having their depending flanges spaced from the flanges ofthe sheets, the said side flanges of the sheets having downwardextensions entering between the parts of the flanges of the seam cap,and the seam cap flanges having upward extensions entering between theparts of the flanges of the roof sheet, 'and formed with flat faces'arranged'to be brought to bear on the fiat spaced from the said ridgeflanges of the sheets; the eaves edge of the said sheets being fixedlysecured to the side ofthe carto nor- ;mally maintain and to restore,after .flexure of the car, the spacing between the roof sheets and thespacing between the roof sheets and'the seam ca s.

In testimony whereo ,I have hereunto set my hand in the presence of twosubscribing witnesses. o v

" RAYMOND C. DUDLEY.

Witnesses:

HENRY Love CLARKE, H. M. MUNDAY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Batents,

Washington, D. 0."

